Only that which is got by hard effort will yield lasting benefit.
The sincere effort to accept and promote the human values - Truth, Right Conduct, Peace, Non-Violence and Love. These five values are a essential for a full and worthwhile life as the five vital airs or pranas mentioned in the scriptures.
In truth you cannot understand the nature of My Reality, either today, or even after a thousand years of steady austerity or ardent inquiry, even if all mankind joins in that effort.