▁diagonal ▁lines . ▁Energy ▁that ▁em its ▁out wards ▁from ▁the ▁centre ▁line ▁is ▁def ensive ▁while ▁off ensive ▁energy ▁moves ▁in wards ▁from ▁the ▁sides ▁of ▁the ▁body . ▁By ▁being ▁aware ▁of ▁this ▁the ▁sil at ▁pract ition er ▁can ▁harm on ise ▁their ▁movements ▁with ▁the ▁c ak era , ▁thereby ▁increasing ▁the ▁power ▁and ▁effect iveness ▁of ▁attacks ▁and ▁movements . ▁Energy ▁could ▁also ▁be ▁used ▁for ▁he aling ▁or ▁focused ▁into ▁a ▁single ▁point ▁when ▁applied ▁to ▁sent u han , ▁the ▁art ▁of ▁attack ing ▁an ▁oppon ent ' s ▁pressure ▁points . ▁Fol kl ore ▁describes ▁legend ary ▁techniques ▁that ▁allow ▁the ▁f ighter ▁to ▁attack ▁from ▁af ar ▁using ▁energy ▁alone ▁without ▁phys ically ▁touch ing ▁the ▁oppon ent . ▁ ▁Term s ▁of ▁address ▁In ▁Indones ia , ▁anyone ▁who ▁teach es ▁sil at ▁is ▁addressed ▁as ▁G uru ▁or ▁teacher . ▁In ▁Malays ia , ▁instruct ors ▁who ▁are ▁qualified ▁to ▁teach ▁but ▁haven ' t ▁yet ▁achieved ▁full ▁master y ▁are ▁addressed ▁as ▁C ik gu ▁or ▁Che gu . ▁Masters ▁are ▁called ▁G uru ▁while ▁grand master s ▁are ▁called ▁Mah ag uru ▁meaning ▁supre me ▁teacher . ▁The ▁terms ▁c ik gu ▁and ▁g uru ▁are ▁often ▁inter change able . ▁An ▁elder ly ▁male ▁master ▁may ▁be ▁addressed ▁as ▁Tok ▁G uru ▁or ▁T uk ▁G uru ▁( lit . ▁teacher - grand father ), ▁often ▁abbre vi ated ▁to ▁Tok ▁or ▁T uk ▁meaning ▁grand father . ▁The