Sri Ramakrishna used to say that we must work with one hand and hold on to God with the other, and after the work is done hold on to Him with both hands. In other words, we must limit our works to only those that are absolutely necessary for us and society at large and devote the rest of our energies to God realization. The words of the Bhagavad Gita tally with Sri Ramakrishna’s -
Mentally resigning all deeds unto Me, having Me as the highest goal, resorting to buddhi yoga, ever fix your mind on Me. Fixing your mind on Me, you shall, by My grace, overcome all obstacles; but if from self-conceit you will not hear Me, you shall perish. (Bhagavad Gita, 18.57-8.) Here we need to focus on the term buddhi yoga. It implies concentration of mind, intelligence, discrimination and will power along with humility; it is a technique to derive psychic energy and guidance from the Divine. It is needless to repeat that the whole process is very difficult, but then svalpamapyasya dharmasya trayate mahato bhayat.