As stated in Bhagavad-gītā (18.61), the Lord is situated in everyone’s heart. It is natural that one should he able to see the Lord at least within himself. But that is not possible for those whose internal vision has been covered by external activities. The pure soul, which is symptomized by consciousness, can be easily perceived even by a common man because consciousness is spread all over the body. The yoga system as recommended in Bhagavad-gītā is to concentrate the mental activities internally and thus see the lotus feet of the Lord within oneself. But there are many so-called yogīs who have no concern with the Lord but are only concerned with consciousness, which they accept as the final realization. Such realization of consciousness is taught by Bhagavad-gītā within only a few minutes, whereas the so-called yogīs take continuous years to realize it because of their offenses at the lotus feet of the Lord.
Reference:- SB 3.5.45