Through the medium of painting

Does "through the medium of painting" in the following context mean "because of using the medium of painting"?

Context:

Bearden turned to photomontage in his 1964 work Conjur Woman, part of his Projections series, a title that points to his artistic process, since the artist had his original small-sale collage photographically enlarged and mounted for exhibition. As he completed more photomontages the series was shown in 1964 under the subtitle The Prevalence of Ritual. In manipulating the photographic fragment in his projections, Bearden also exploited the mnemonic associations of the photographic image. As a medium it could bring together his own personal memories with those of an entire generation of African Americans who similarly migrated north, and whose past in the south could be called up or “conjured” as a collective or cultural memory. Bearden then strives to represent the shared nature of African American experience as one united in a common spirituality and with a strong sense of community. In Bearden’s projections this representation of black community and spirituality takes on further power and significance through the medium of painting.