Osiris represents the energies of wisdom, justice and integrity. He’s kind, responsible and trustworthy. Osiris showing up in this position would indicate that your inner self wants you to know that you possess at least one (and likely more) of those same qualities.
Osiris is very traditional and represents a desire to do things ‘Properly’. He was also very spiritual and a deep thinker. Typically, this means that that you may feel as if you are obliged to act as fairly as you can at every level of life. You are inherently wise and always seek the best outcome for everyone. But sometimes you find this obligation uncomfortable.
Occasionally, Osiris can bring with him quite a heavy air of responsibility or required reliability. His appearance here indicates that taking control of or responsibility for something here feels like a big ask. But that you need to do it anyway in order to grow.
Osiris is the Lord of the Underworld. So this implies that – while you may experience some discomfort around going to the places you don’t want to go in your psyche, in order to examine them, and bring light to them – that you need to be willing to do it anyway. And in order for you to grow, that you need to take responsibility for everything in your life, because when you do, you’ll realise that with it comes power – and everything you want.