The external is the mirror of internal, and in reality this perception of inside and outside is an illusion. Everything appears in Consciousness.
What you see inside you, this also you see outside. If you see peace and love within you, you will see peace and love in everything you perceive outside.
This happens because the inside and the outside do not really exist, it is an illusion created by the mind.
The supposed inside and the supposed outside are both formed in the mind, and both appear in Consciousness. The thoughts, feelings, emotions are the mind, the things of the world are also the mind. So, what we feel inside it is also reflected to the outside. If we feel happy, the world appears as a happy place, if we feel very depressed, the world appears as a hell.
The mind appears in consciousness and is illuminated by consciousness. The consciousness itself although remains unchanged it appears as everything, seemingly inside and outside. Both (the supposed inside and outside) derive and are illuminated by the unique and without second nondual consciousness or God.
Whenever you feel the peace and love of God in you this peace and love will embrace all forms seemingly outside you.
God, the inside and the outside are the nondual Brahman, which nature is Eternal Existence, Pure Consciousness, Infinite Bliss and That Brahman is what we really are!