According to Osho, acceptance on the mental plane means a total yes to what is, including your jealousy, hatred, and lack. This stops the beggar-mind of asking and expectation. When the lamp of acceptance is lit, its shadows - hatred, envy, lovelessness, violence - dissolve on their own. Acceptance ends fault-finding and the demand for perfection, allowing love, equanimity, and intimacy with reality.
Say yes to everything inside and outside you; when you stop demanding and just accept, bad feelings fade and love shows up.