Given a Mind Unit with the ability "When I hold, draw 1" and a Calm Unit with the ability "At the start of your Beginning Phase, draw 1" at the same battlefield, in what sequence will these abilities resolve at the start of their controller's turn in relation to gaining a point.

At the start of your turn, the sequence of events during the Beginning Phase is as follows:

1. "At the start of" Triggered Abilities Resolve: Abilities that trigger "at the start of the Beginning Phase" (like your Calm Unit's ability) are added to the chain and resolve first during the Beginning Step (Rule 315.2.a.1).
2. Scoring Step (Holding): Once those initial effects are processed, the game proceeds to the Scoring Step where you "Hold" your battlefields (Rule 315.2.b.1).
3. Hold Triggered Abilities Resolve: As you perform the action of Holding and gain a victory point, any "When I hold..." or "When you hold..." triggers (like your Mind Unit's ability) are then added to the chain as pending items and resolve (Rule 383.4.d.2.a).

Summary of Sequence:

• First: Your Calm Unit's "At the start of your Beginning Phase" ability resolves.
• Second: You perform the "Hold" action for your battlefields and gain the victory point.
• Third: Your Mind Unit's "When I hold" ability resolves.

Because these triggered abilities occur at different times within the Beginning Phase (the start of the phase versus the scoring step), they do not trigger simultaneously. Your Calm Unit's effect will always resolve before you gain your victory point from Holding, and your Mind Unit's effect will resolve as a consequence of that Holding action.