The spark of love in you has to be cherished and fed so that it may reach God, then every being will be God, every act will be divine; every reaction you get from outside world will be charged with love and sweetened with that nectar. You love the God in all beings and the God in all beings responds with love. Love God, though tribulation may be your lot; love Him though you are refused and rebuked; for it is only in the crucible of travail that the metal is purified and cleared of impurities.
Remember three things always, continue service to humanity, whereever you are. Seek chances of helping others. Never lose an opportunity of using your skills and enthusiasm for the allevation of sorrow, pain or distress. Secondly, do not omit, neglect or postpone your own particular duty of study, meditation, bhajan and other such spiritual practices. Above all, have faith that God is with you at all times and at all places.
God is smaller than the smallest and bigger than the biggest. Though He is not visible to the physical eye, you can experience Him. This is a rose which you can see; but the fragrance can not be seen; it can only be experienced. Fragrance has no form but the flower that gives the fragrance has a form. Similarly, love has no form, but the mother who gives you love has a form. Love, bliss, fragrance, all these have no form that is the source of the formless attribute. Therefore, it is foolish to ask for direct evidence of God's existence. There are many things which are beyond the realm of direct evidence.
Detachment alone can give happiness. Renunciation is real yoga. Three evil qualities have to be renounced before man can rise to his real role. Anger which smothers wisdom, lust which pollutes action and greed which destroy's one's love for God and man. The touchstone which pronounces an act is meritorious is renunciation. If an act is self-directed, it it helps to inflate the ego, it is a sin.