There are two kinds of Riya - Showing off-Ostentation ie pure ostentation and adulterated ostention. In pure ostentation "Riya" a man does a good deed only for worldly benefit. In Adulterated ostentation, a man does a good deed with the intention of reaping the benefits of the world as well as of the Hereafter.
You don't need organized religion to connect with the universe. Often a church is the only place you can go to find peace and quiet... But it shouldn't be confused with connecting with one's spirit.
If asked whether you love God, say nothing. This is because if you say, 'I do not love God,'you are an unbeliever. If, on the other hand, you say, 'I do love God,' your actions contradict you.
All humans are dead except those who have knowledge; and all those who have knowledge are asleep, except those who do good deeds; and those who do good deeds are deceived, except those who are sincere; and those who are sincere are always in a state of worry.