According to Osho, Tantra integrates death by recognizing life and death as one continuum: begin with total involvement in life but inquire so deeply that you also know death, and through that awareness transcend both into the deathless. Buddha starts from death, Tantra from life—the source is the same. Death-awareness dissolves false “life,” guiding Tantra toward what is beyond birth and death.
See life and death as two sides of the same coin; by fully noticing both, you discover the part of you that never comes or goes.