Since before there were cave drawings, humankind has been driven to accomplish two basic things. Survival and communication. To communicate your own thoughts in a meaningful way and to be appreciated for that communication is not only gratifying and good, but it's also essential to a meaningful existence.
Every human being has a voice of expression. Whether a person is an artist or not, the desire to be known and understood by another human being is innate. Taking that expression to it's ultimate fulfillment is the sacred responsibility of every breathing human being. To ignore this sacred calling is to live as though you were an extinguished fire, and like wet ashes you are destined to blend with the elements into nothingness.
Don't be nothing. Find your voice.