It is not absolutely necessary to abandon the ordinary life in order to seek after the Light or to practise Yoga. This is usually done by those who want to make a clean cut, to live a purely religious or exclusively inner and spiritual life, to renounce the world entirely and to depart from the cosmic existence by cessation of the human birth and a passing away into some higher state or into the transcendental Reality. Otherwise it is only necessary when the pressure of the inner urge becomes so great that the pursuit of the ordinary life is no longer compatible with the pursuit of the dominant spiritual objective. Till then what is necessary is a power to practise an inner isolation, to be able to retire within oneself and concentrate at any time on the necessary spiritual purpose. There must also be a power to deal with the ordinary outer life from a new inner attitude and one can then make the happenings of that life itself a means for the inner change of nature and the growth in spiritual experience.
Ref: Letters on Yoga – II