The inner voice of joy is rooted deeply in the Source of all things. Whether it is named Universal Oneness, God or unconditional love. This voice is the gift we all have. It might need to be mined and liberated from the depths of our consciousness, as it cannot come through the thick clouds of fear, but it is there in everyone. This voice expresses itself so easily and instantly, without any heavy labouring in figuring out. It shines with such purity and ease, and banishes doubt and sadness.
There are two inner voices in my experience. The other one of the monkey mind, quite often chattering away, or making little comments that do their best to erode our sense of self belief and self worth. That voice is like an overactive computer, guided only by the fears and delusions of our human belief in separation. One of the most persistent mistakes we make is to listen to the mind voice and encourage it to shape our perception of the world.