What motivation did he had to do what he

The cards can't tell you what he was thinking — they can only put words next to what you already saw him do. Read that way, here's the shape.

Past — The Emperor, reversed. The backdrop around whatever he did was a structure, rule, or authority that did not sit right with him: order he didn't own, a hierarchy he resented, or a limit imposed from above. Reversed Emperor leans toward rigidity that broke, or control that stopped meaning anything to him.

Present — Ace of Wands. The go signal. Impulse, appetite, "now" — a first move, something started rather than something defended. The strongest reading here is that whatever he did began as a live impulse of his own, not as compliance.

Future — Seven of Wands. If that spark keeps burning, it becomes a held position: he stands his ground against people pushing back, and he holds it.

Two Wands in three seats puts fire as the main channel of this whole spread, and only one Major Arcana card keeps it in the realm of the actionable rather than fate.

So, conditionally: if the visible trace from that time shows him starting or claiming something on his own initiative, then the Ace-and-Seven read holds — a spark that hardened into stubborn ground. If instead the trace shows him breaking an instruction, or moving because someone above him told him to, then the reversed Emperor is the dominant force and this was rigidity and pushback, not initiative. What separates the two is not his motive, which stays his, but the record of the minutes before he did it.

One step, tonight: go to the one artifact from that day that isn't your memory of him — the message, the email, the document, the signed line — and read the last thing he wrote or approved *before* the act. That record can confirm or kill the reading; his interior cannot be checked by any of this.