For Heraclitus, life and death are not diametrically opposed opposites.
Many of the fragments point to sleep as an intermediate state -- it is
thus possible to be neither (or both) dead or alive. He even equates
mortals and immortals in B62. Unfortunately,
no complete picture of Heraclitus' views on death emerges from the fragments.
Many have tried to reconstruct doctrines of reincarnation or an after-life
with rewards, but the evidence is simply not enough to do any more than
speculate. Many of the fragments point to other doctrines: for example,
B36 mentions ethics;
B20 the hopelessness of mankind.
B98 is an interesting (but completely cryptic)
reference to the senses.