The yoga practice that leads to self-inquiry and self-realization towards the truth of impermanence and selflessness in all the names and forms, enabling the mind to be in peace amidst ceaseless changes of the body and mind, and in all the names and forms that the mind perceives through the senses, and hence, allowing the mind to realize/unveil unconditional peace, transcending all the selfless impermanent changes.
The well-trained mind is free from egoistic attachment, identification, desire of craving and aversion, judgment, comparison and expectation, allowing the perceived reality being what it is, as it is, and respecting all the impermanent changes of the body and mind and whatever the mind perceives or experiences as they are, regardless of whether the changes are desirable or undesirable, pleasant or unpleasant, agreeable or disagreeable.
In order to realize unconditional peace, the mind needs to know what is conditional and unconditional peace, by inquiring or investigating towards the root cause of 'unrest', 'disturbance', 'dissatisfaction', 'unhappiness', 'doubt', 'fear', 'worry', 'insecurity', or what give rise to the state of 'peacelessness'.
The entire process of learning and practicing yoga, is indeed about developing non-attachment, non-identification, non-craving, non-aversion, non-judgment, non-comparison and non-expectation.
Upon the annihilation of all these egoistic defilement within the modification of the mind, unconditional peace that is unconditioned by selfless impermanent changes, is unveiled. This 'peace' is always there, as it is, never increase nor decrease, but it's whether the mind is free or not free from egoism and ignorance.
'Peace as it is' doesn't mean that there's no perception of names and forms, or changes, or activities within the mind, but the perceptive cognitive thinking mind has gone beyond itself, or the modification of the mind, and is aware of the selfless perception of names and forms as well as all the impermanent changes, without being determined by the selfless impermanent modification of the mind itself.
The mind 'experiences' or 'perceives' unrest or the state of peacelessness, is due to there's grasping or attachment arise towards the perceived names and forms as well as the selfless impermanent changes, and there's desire of craving and aversion towards 'controlling' or 'changing' the perceived reality that the mind likes and doesn't like, agrees and disagrees with, and desires and doesn't desire.
Due to ignorance, there's an individual identity of 'I', that doesn't really exists, but sort of existing in the form of a continuous stream of the ceaseless thought currents, which then unwittingly attaching onto and identifying with the different qualities of names and forms that are selfless and impermanent, that also gives rise to boundless desires that are awaiting to be gratified, and hence, gives rise to 'unrest', 'disturbance', 'dissatisfaction', 'unhappiness', 'doubt', 'fear', 'worry', 'insecurity', or what give rise to the state of 'peacelessness' from within the modification of the mind.
It's very simple.
Attachment/identification (passion) => unrest, or conditional peace/happiness/satisfaction/meaningfulness, being determined by the selfless impermanent changes of good and bad
qualities, of pleasantness and unpleasantness, by coming in contact with desirable and
undesirable conditions/situations/experiences, or by the gratification and non-gratification of desires.
Void of attachment/identification (dispassion) => unconditional peace, void of desires of craving and aversion, undetermined by the selfless impermanent changes of good and bad qualities, of pleasantness and unpleasantness, of desirable and undesirable conditions/situations/experiences.
However, most egoistic minds encounter extreme difficulty towards comprehending and developing dispassion or the void of attachment/identification, because the minds are being conditioned deeply by all kinds of worldly passionate egoistic social/cultural/community/religious/spiritual/political thinking, beliefs, values and practice that are under the influence of survival instinct, which propagate "Promoting attachment and identification in order to gain maximum support/power/control to protect/preserve/expand 'our' belief and values, creating 'our' world that we desire, that we think and believe how it should be. Anything and anyone that are different from 'us' and are not inline with 'our' belief and values, are 'the annoying obstacles' towards achieving 'our' world that we desire."
'Dispassion' is the essential teaching and practice of yoga and Buddhism towards inner peace and world peace, that leads to oneness/non-separateness/accommodation among all diversities that are selfless and impermanent, however, it's being recognized by the worldly passionate egoistic minds as something 'negative', 'wrong', 'bad', 'insanity', 'selfishness', 'harsh', 'cold', 'inappropriate', 'meaningless', 'unfriendly', 'backward', 'regressive', and etc.
And hence, all kinds of different yoga practice, breathing exercises, diet restriction, worldly interactive and connective activity restriction, observations, concentration and meditation practice are there, to help the yoga practitioners to develop dispassion through non-attachment, non-identification, non-craving, non-aversion, non-judgment, non-comparison and non-expectation, to purify, discipline and quiet the modification of the mind, to perform self-inquiry, to transcend the modification of the mind, to annihilate egoism and ignorance from the contaminated thinking/acting/reacting mind, to realize/unveil unconditional peace, which is the uncontaminated state of the mind itself void of egoism and ignorance.
It's just ceaseless names and forms arising and passing away, selflessly, including the modification of the mind.
It's not about influencing, changing or controlling the names and forms in the world to be or not to be in certain way, to gratified the egoistic desires of craving and aversion, to make everything to be the way that 'I' think and believe how it should be, but it's about purifying, disciplining, quieting and transcending the modification of the impure ignorant egoistic mind itself.
Those who cannot comprehend this, or don't want this, but believing in promoting passionate 'connection', 'creation', 'action' and 'power' to either 'influence', 'create' or 'control' the names and forms in the world to be the way that they think how it should be, the way that they like it to be, while 'blaming' and 'hating' others for their own dissatisfaction and unhappiness due to non-gratified boundless passionate desires and aspirations, that's their freedom.
Everyone have their own favorite colour that they like and agree with, and it's okay. There's nothing wrong if everyone keep their favorite colour to themselves, without forcing others to also like and agree with their favorite colour, while respecting others to have their own different favorite colour, without trying to make or control the world to be in their own particular favorite colour only. That is truly 'unity for world peace' by respecting the different diversities. The world will be peaceful as it is.
Or else, everyone try to interfere with/convert/change/control/force one another to also like and agree with their particular favorite colour, while not respecting others to have their own different favorite colour, and very passionately trying to make the world to only have their own particular favorite colour while not allowing any other colour that they don't like and disagree with to be existing in the world, thinking and believing in that is what 'unity for world peace' is about, by oppressing and eliminating diversity, and hence, that is what happening in the world, where wars, discrimination and hatred are still happening even in the era of so called advanced science and technology, destroying peace and harmony, nature, lives, things and properties, in order to create 'my/our' world the way that 'I/we' desire it to be.
Yoga is not about learning and practicing some yoga asana, breathing and cleansing exercises, or chanting, rituals and prayers, or vegetarianism and positive thinking, or concentration and meditation practice under particular style and brand, to attain some momentary physical and mental benefits or spiritual healing. But through different kinds of practice, freeing the mind from ignorance and the by-products of ignorance. It's not even trying to achieve world peace, but by attaining liberation from ignorance, there will be less ignorance and the consequences of ignorance in the world.
Siddhartha Gautama Buddha - The Dhamma will be manipulated and eventually disappeared. Let it be.
Swami Sivananda - Do not hoard disciple. Do not build ashram. Do not mix.
Those who don't know, will perceive these teachings as a form of non-appreciation, selfishness, negativity, backward or regression. That's their freedom of thinking.
Only those who know, can truly understand the greatness of these teachings, which is not about non-appreciation towards 'The Dhamma' or 'The lineage'. It's indeed great compassion towards oneself and others.
Inquire the truth of everything.