How do you know you have established yourself in God?
Many things but the bare basic is as follows as per Paramhansa Yogananda Please not the words obtain at will! Peace when in external turmoil. Those are more Long lasting signs. Sporadic peace is equally important but slowly with patience one must increase it
Success is not a simple matter;it cannot be determined merely by the amount of money and material possessions you have. The meaning of success goes far deeper. It can only be measured by the extent to which your inner peace and mental control enable you to be happy under all circumstances. That is real success. When you can look within and your conscience is clear, your reason unprejudiced, your will firm yet flexible, and your discrimination strong; and when you are able to obtain at will the things you need and the things you consider worthwhile, you are success.
Sri Sri Paramahansa Yogananda.
Man’s Eternal Quest…( Page 388)