It is well worth recalling, for the sake of comparison, and at the risk of restricting a small but important detail to otherwise just this card, that similar patterns (whether leaves or 'yods') also appear as distinctly on the Ace of Swords (on which is also depicted a holding hand).
It is also a form which, unlike the Sword card in which they appear to 'float' or drop downwards, seem more to emanate outwards on this card.
It is also interesting that in at least some versions of the Ace of Baston, the general shape of the club mimicks each of those leaf-like shapes.
Personally, I do not think that they depict the letter yod, any more than the coin depicts the letter 'O'. I do understand, nonetheless, that some have, in the past as now, decided to make of these 'yods' due to their similarity of depiction. I have also unfortunately heard similarly made comments that the 'dot-design' on, for example, the Schaffhouse must refer to or be taken from Australian aboriginal paintings!
As shrapnels of radiating energy, however, there may be some interesting comments which may be made.
Does the beginner begin to deepen an appreciation for the Marseille by attempting to investigate the imagery in terms of relatively distant, though similarly depicted, imagery? My own answer is that it removes the person from carefully continuing to look at the images as presented.
Investigating in detail the Hebrew alphabet has also, in my personal view, numerous very worthy and revealing features... but do these reflections aid in "Beginners' reflections", or rather provide stepping stones to investigate what are not reflections on the pip cards ?