  Spirals and streamers are the hallmarks of mass accretion during the early
stages of star formation. We present the first observations of a large-scale
spiral and a streamer towards a very young brown dwarf candidate in its early
formation stages. These observations show, for the first time, the influence of
external environment that results in asymmetric mass accretion via feeding
filaments onto a candidate proto-brown dwarf in the making. The impact of the
streamer has produced emission in warm carbon-chain species close to the
candidate proto-brown dwarf. Two contrasting scenarios, a pseudo-disk twisted
by core rotation and the collision of dense cores, can both explain these
structures. The former argues for the presence of a strong magnetic field in
brown dwarf formation while the latter suggests that a minimal magnetic field
allows large-scale spirals and clumps to form far from the candidate
proto-brown dwarf.
