I will seek to test the possibility that Parmenides was referring, in the Way of Being (the Aletheia), to existence-as-a-whole. According to this hypothesis Parmenides, in expounding 'the first way' should be understood to be making clear what can be said without contradiction about existence-as-a-whole, i.e. about what is, about Being.
Tejera, Victorino, "Parmenides: 'To Be' or 'Not to Be'" (1972). The Society for Ancient Greek Philosophy Newsletter. 268.