God is a creator. He increases and does not allow waste.
In the parable of the talents we see that master gave 3 servants some talents. One he gave five, one he gave two and another he gave one. Each servant was given according to his own ability. The master left and would return at an appointed time excepting to reap from what was given to his servant. Upon his return, the servant who had 5 talents earned 5 more. He was made ruler over many because he was faithful with the little that was given to him. The servant who had 2 talents earn 2 more. Likewise, he was made ruler over many because he was faithful with the little that was given to him. They both were told to enter in the joy of their lord. The servant who had one talent earned nothing. He hid the talent in the ground. The one talent was taken from the servant and given to the one that had 5. Why? The servant did not use is talent, he wasted it by hiding it.
Our talents are given to us by God to be used and shared with others to show the love of God. How can we brighten up someones day with a smile, if we never smile? If the smile was meant for us to see, we would see our smiles without needing a mirror or something that has a reflection. If our songs were not meant for others to hear, we would have not need to hear.
Do not waste your talent, use it for the glory of God.