The marvelous pursuit is an attempt to find paths out of alienation, by refusing to conceive of human action as divisible into the physical and the mental.
The marvelous pursuit is born from the desire to create playful complexity in a desert of simplistic convenience. A hobby is a form of consumption, the marvelous pursuit on the other hand, is a rejection of commodified convenience, it can't be bought because it has no price. A marvelous pursuit refuses socially ascribed use. People learn such socially useless things as the names of fern and the grammar of dead languages because they are bored with the mind-dumbing options dished out to them on TV.
Marvelous pursuits are a means to resist alienation from one's environment because they are a temporary means to make that environment one's own, by ascribing one's own, often bizarre, value for things and spaces. The marvelous pursuit often creates complexity but a complexity which is opposed to that of the technician. The master of a marvelous pursuit can never be an engineer because the marvelous is by nature useless to society (and therefore to capital).
The value in marvelous pursuits lies in their self-creation which evades both use-value and exchange value.
incoming(2): merveilles commodity